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[57590] Artykuł: Modeling and experimental investigations of keyhole laser weldingCzasopismo: Laser Technology 2012: Applications Of Lasers Tom: 8703, Strony: 1-9ISSN: 0277-786X ISBN: 978-0-8194-9494-8 Wydawca: SPIE-INT SOC OPTICAL ENGINEERING, 1000 20TH ST, PO BOX 10, BELLINGHAM, WA 98227-0010 USA Opublikowano: 2013 Seria wydawnicza: Proceedings of SPIE Autorzy / Redaktorzy / Twórcy Grupa MNiSW: Materiały z konferencji międzynarodowej (zarejestrowane w Web of Science) Punkty MNiSW: 15 Klasyfikacja Web of Science: Proceedings Paper ![]() ![]() Keywords: Laser welding  laser melting  keyhole welding  deep penetration welding  deep penetration melting  |
In the paper are presented new analytical modeling of deep penetration laser welding and its experimental verification. The model is an extension of analytical model of 1973. The model allows the derivation of penetration and width of melting zone caused by moving laser beam. As a result there was derived dependences of penetration length, width of the melting zone and aspect ratio of the zone as a function of welding speed and laser power. The theoretical results was compared with experimental data. The results allows the determination of optimal conditions for keyhole effect. Results of the modelling are expressed in non dimensional parameters therefore can be applied to any metals and alloys for design of laser welding parameters.